Frame Geometry Measurement Diagram
Tallboy Geometry / Based on 505mm fork (measured from axle to crown).
  Medium Large X-Large XX-Large
Top Tube 23.0" 24.0" 25.0" 25.9"
Head Tube 3.9" 3.9" 4.3" 4.7"
Head Tube Angle 71.0° 71.0° 71.0° 71.0°
Seat Tube 17.7" 19.5" 21.0" 22.5"
Seat Tube Angle 73.0° 73.0° 73.0° 73.0°
WheelBase 42.6" 43.6" 44.7" 45.6"
Chainstay 17.5" 17.5" 17.5" 17.5"
BB Height 12.8" 12.8" 12.8" 12.8"
Standover 29.1" 29.9" 30.6" 31.0"
Headset 1.125" 1.125" 1.125" 1.125"
Seat Post (diameter) 30.9mm 30.9mm 30.9mm 30.9mm
Bottom Bracket 73mm 73mm 73mm 73mm